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All results from a given calculation for C4H5NO (3-Methylisoxazole)

using model chemistry: B1B95/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B1B95/cc-pVDZ
 hartrees
Energy at 0K-285.266031
Energy at 298.15K-285.272532
Nuclear repulsion energy224.106285
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at B1B95/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3306 3177 0.22      
2 A 3281 3154 0.00      
3 A 3179 3055 3.97      
4 A 3141 3019 8.70      
5 A 3066 2947 14.70      
6 A 1646 1582 29.51      
7 A 1524 1465 1.65      
8 A 1494 1436 38.20      
9 A 1449 1393 7.73      
10 A 1436 1380 21.92      
11 A 1383 1329 0.80      
12 A 1295 1245 2.26      
13 A 1170 1124 18.43      
14 A 1077 1035 11.31      
15 A 1046 1005 3.35      
16 A 1035 995 2.39      
17 A 977 939 9.70      
18 A 963 926 5.83      
19 A 914 878 14.59      
20 A 880 846 0.51      
21 A 789 759 37.17      
22 A 669 643 4.74      
23 A 668 642 0.10      
24 A 620 596 3.93      
25 A 332 320 6.47      
26 A 275 265 5.13      
27 A 140 134 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 18876.9 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 18144.5 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at B1B95/cc-pVDZ
ABC
0.30761 0.11853 0.08696

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.121 0.023 -0.000
H2 -2.516 0.538 -0.886
H3 -2.488 -1.009 -0.000
H4 -2.516 0.538 0.887
C5 1.480 0.567 -0.000
O6 1.365 -0.764 -0.000
N7 0.031 -1.101 0.000
C8 -0.632 0.030 -0.000
C9 0.254 1.146 0.000
H10 0.011 2.203 0.000
H11 2.493 0.954 -0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 O6 N7 C8 C9 H10 H11
C11.09871.09551.09873.64113.57352.42731.48832.62713.04904.7073
H21.09871.78331.77294.09264.18843.15562.14242.97103.15305.1041
H31.09551.78331.78334.26923.86102.52042.12713.48804.06975.3547
H41.09871.77291.78334.09254.18813.15522.14242.97103.15315.1040
C53.64114.09264.26924.09251.33582.20952.17901.35592.19841.0855
O63.57354.18843.86104.18811.33581.37642.14982.21023.26132.0559
N72.42733.15562.52043.15522.20951.37641.31172.25893.30413.2081
C81.48832.14242.12712.14242.17902.14981.31171.42522.26553.2597
C92.62712.97103.48802.97101.35592.21022.25891.42521.08382.2478
H103.04903.15304.06973.15312.19843.26133.30412.26551.08382.7787
H114.70735.10415.35475.10401.08552.05593.20813.25972.24782.7787

picture of 3-Methylisoxazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C8 N7 120.068 C1 C8 C9 128.754
H2 C1 H3 108.730 H2 C1 H4 107.571
H2 C1 C8 110.922 H3 C1 H4 108.730
H3 C1 C8 109.893 H4 C1 C8 110.920
C5 O6 N7 109.098 C5 C9 C8 103.143
C5 C9 H10 128.264 O6 C5 C9 110.397
O6 C5 H11 115.841 O6 N7 C8 106.184
N7 C8 C9 111.179 C8 C9 H10 128.592
C9 C5 H11 133.763
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.036      
2 H 0.055      
3 H 0.051      
4 H 0.055      
5 C 0.211      
6 O -0.143      
7 N -0.132      
8 C 0.000      
9 C -0.155      
10 H -0.006      
11 H 0.029      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.469 2.738 -0.000 2.778
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.301 1.795 -0.000
y 1.795 -35.877 0.001
z -0.000 0.001 -35.748
Traceless
 xyz
x 6.511 1.795 -0.000
y 1.795 -3.352 0.001
z -0.000 0.001 -3.159
Polar
3z2-r2-6.318
x2-y26.575
xy1.795
xz-0.000
yz0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.417 0.178 0.000
y 0.178 7.281 0.000
z 0.000 0.000 4.142


<r2> (average value of r2) Å2
<r2> 135.814
(<r2>)1/2 11.654